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49122005 = 520814721
BaseRepresentation
bin1011101101100…
…0101011010101
310102102122201112
42323120223111
5100033401010
64512504405
71134346562
oct273305325
9112378645
1049122005
11258010a9
121454b105
13a23b89a
146749869
1544a4a05
hex2ed8ad5

49122005 has 8 divisors (see below), whose sum is σ = 58987224. Its totient is φ = 39270400.

The previous prime is 49121999. The next prime is 49122013. The reversal of 49122005 is 50022194.

It can be written as a sum of positive squares in 4 ways, for example, as 3775249 + 45346756 = 1943^2 + 6734^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49122005 - 28 = 49121749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8045 + ... + 12765.

It is an arithmetic number, because the mean of its divisors is an integer number (7373403).

Almost surely, 249122005 is an apocalyptic number.

It is an amenable number.

49122005 is a deficient number, since it is larger than the sum of its proper divisors (9865219).

49122005 is a wasteful number, since it uses less digits than its factorization.

49122005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6807.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 49122005 is about 7008.7092249572. The cubic root of 49122005 is about 366.2340292088.

Adding to 49122005 its reverse (50022194), we get a palindrome (99144199).

The spelling of 49122005 in words is "forty-nine million, one hundred twenty-two thousand, five".

Divisors: 1 5 2081 4721 10405 23605 9824401 49122005